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<div id="main_div" class="container" style="padding-left: 25px; padding-right: 25px">
	<h2> 提交记录 7015 </h2>
	<hr />
	
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					<th class="col-xs-2"> 用户 </th>
					<th class="col-xs-3"> 题目 </th>
					<th class="col-xs-2"> 状态 </th>
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					<th class="col-xs-1"> 用时 </th>
					<th class="col-xs-1"> 内存 </th>
					<th class="col-xs-1"> 语言 </th>
					<th class="col-xs-1"> 代码长度 </th>
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					<td style='font-size:13px'> <a href='/user/profile/negiizhao/index.html'> negiizhao </a> </td>
<td> <a href='/problem/1002i/index.html'> 1002i. 【模板题】多项式乘法 </a> </td>
<td> Accepted </td>
<td> 100 </td>
<td style='font-size:13px'> 25.368 ms </td>
<td style='font-size:13px'> 14 MB + 424 KB </td>
<td style='font-size:13px'> C++11 </td>
<td style='font-size:13px'> 4.09 KB </td>
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					<th class="col-xs-6"> 提交时间 </th>
					<th class="col-xs-6"> 评测时间 </th>
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				<tr>
					<td style='font-size:13px'> 2018-12-10 16:30:44 </td>
<td style='font-size:13px'> 2019-01-19 16:20:54 </td>
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				<label for="code"> 代码 </label>
				<pre style="background-color:white"><code class="cpp">#include &lt;cstdio&gt;
#include &lt;cctype&gt;
#include &lt;cmath&gt;
#include &lt;algorithm&gt;

typedef long long int64;

struct IO_Tp
{
	const static int _I_Buffer_Size = 2 &lt;&lt; 20;
	char _I_Buffer[_I_Buffer_Size], *_I_pos = _I_Buffer;
	
	const static int _O_Buffer_Size = 2 &lt;&lt; 20;
	char _O_Buffer[_O_Buffer_Size], *_O_pos = _O_Buffer;
	
	IO_Tp()
	{
		fread(_I_Buffer, 1, _I_Buffer_Size, stdin);
	}
	
	~IO_Tp()
	{
		fwrite(_O_Buffer, 1, _O_pos - _O_Buffer, stdout);
	}
	
	IO_Tp &amp;operator&gt;&gt;(int &amp;res)
	{
		while (!isdigit(*_I_pos))
			++_I_pos;
		res = *_I_pos++ &amp; 15;
		while (isdigit(*_I_pos))
			(res *= 10) += *_I_pos++ &amp; 15;
		return *this;
	}
	
	IO_Tp &amp;operator&lt;&lt;(int n)
	{
		static char _buf[10];
		char* _pos = _buf;
		do
			*_pos++ = &#x27;0&#x27; + n % 10;
		while (n /= 10);
		while (_pos != _buf)
			*_O_pos++ = *--_pos;
		return *this;
	}
	
	IO_Tp &amp;operator&lt;&lt;(char ch)
	{
		*_O_pos++ = ch;
		return *this;
	}
} IO;

constexpr double Pi = 3.1415926535897932384626433832795;
constexpr int Max_size = 1 &lt;&lt; 18 | 5;

int size;
int bitrev[Max_size];
double c[Max_size], s[Max_size];

inline void init(int n)
{
	for (size = 1; size &lt; n; size &lt;&lt;= 1)
		;
	for (int i = 0; i != size; ++i)
		bitrev[i] = bitrev[i &gt;&gt; 1] &gt;&gt; 1 | ((i &amp; 1) * (size &gt;&gt; 1));
	size &gt;&gt;= 1;
	c[size] = 1, s[size] = 0;
	double pc = cos(Pi / size), ps = sin(Pi / size);
	for (int i = 1; i != size; ++i)
		c[size + i] = c[size + i - 1] * pc - s[size + i - 1] * ps, s[size + i] = s[size + i - 1] * pc + c[size + i - 1] * ps;
	for (int i = size - 1; i; --i)
		c[i] = c[i &lt;&lt; 1], s[i] = s[i &lt;&lt; 1];
	size &lt;&lt;= 1;
}

inline void DHT(double A[], int L)
{
	int shift = __builtin_ctz(size) - __builtin_ctz(L);
	for (int i = 0; i != L; ++i)
		if (i &lt; bitrev[i] &gt;&gt; shift)
			std::swap(A[i], A[bitrev[i] &gt;&gt; shift]);
	if (1 &lt; L)
		for (int i = 0; i != L; i += 2)
		{
			double x = A[i], y = A[i + 1];
			A[i] = x + y, A[i + 1] = x - y;
		}
	if (2 &lt; L)
		for (int i = 0; i != L; i += 4)
		{
			double x = A[i], y = A[i + 2];
			A[i] = x + y, A[i + 2] = x - y;
			x = A[i + 1], y = A[i + 2 + 1];
			A[i + 1] = x + y, A[i + 2 + 1] = x - y;
		}
	if (4 &lt; L)
		for (int i = 0; i != L; i += 8)
		{
			{
				double x = A[i + 5], y = A[i + 7];
				A[i + 5] = c[5] * x + s[5] * y, A[i + 7] = s[5] * x - c[5] * y;
			}
			double x = A[i], y = A[i + 4];
			A[i] = x + y, A[i + 4] = x - y;
			x = A[i + 1], y = A[i + 4 + 1];
			A[i + 1] = x + y, A[i + 4 + 1] = x - y;
			x = A[i + 2], y = A[i + 4 + 2];
			A[i + 2] = x + y, A[i + 4 + 2] = x - y;
			x = A[i + 3], y = A[i + 4 + 3];
			A[i + 3] = x + y, A[i + 4 + 3] = x - y;
		}
	for (int d = 8; d &lt; L; d &lt;&lt;= 1)
		for (int i = 0; i != L; i += d &lt;&lt; 1)
		{
			{
				int j = d + 1, k = d + d - 1;
				for (; j + 7 &lt; k - 7; j += 8, k -= 8)
				{
					double x = A[i + j], y = A[i + k];
					A[i + j] = c[j] * x + s[j] * y, A[i + k] = s[j] * x - c[j] * y;
#define calc(offset)\
					x = A[i + j + offset], y = A[i + k - offset];\
					A[i + j + offset] = c[j + offset] * x + s[j + offset] * y, A[i + k - offset] = s[j + offset] * x - c[j + offset] * y;
					calc(1)calc(2)calc(3)calc(4)calc(5)calc(6)calc(7)
#undef calc
				}
				for (; j &lt; k; ++j, --k)
				{
					double x = A[i + j], y = A[i + k];
					A[i + j] = c[j] * x + s[j] * y, A[i + k] = s[j] * x - c[j] * y;
				}
			} 
			for (int j = 0; j != d; j += 8)
			{
				double x = A[i + j], y = A[i + d + j];
				A[i + j] = x + y, A[i + d + j] = x - y;
#define calc(offset)\
				x = A[i + j + offset], y = A[i + d + j + offset];\
				A[i + j + offset] = x + y, A[i + d + j + offset] = x - y;
				calc(1)calc(2)calc(3)calc(4)calc(5)calc(6)calc(7)
#undef calc
			}
		}
}

int N, M, L;
double A[Max_size], B[Max_size], C[Max_size];

int main(int argc, char **argv)
{
	IO &gt;&gt; N &gt;&gt; M;
	for (int i = 0, x; i &lt;= N; ++i)
		IO &gt;&gt; x, A[i] = x;
	for (int i = 0, x; i &lt;= M; ++i)
		IO &gt;&gt; x, B[i] = x;
	
	for (L = 2; L &lt;= N + M; L &lt;&lt;= 1)
		;
	init(L);
	
	DHT(A, L), DHT(B, L);
	C[0] = A[0] * B[0] / L;
	for (int i = 1; i &lt;= L &gt;&gt; 1; ++i)
	{
		double x = A[i] + A[L - i], y = A[i] - A[L - i];
		C[i] = (B[i] * x + B[L - i] * y) / 2 / L, C[L - i] = (B[L - i] * x - B[i] * y) / 2 / L;
	}
	DHT(C, L);
	
	for (int i = 0; i &lt;= N + M; ++i)
		IO &lt;&lt; static_cast&lt;int&gt;(C[i] + 0.5) &lt;&lt; &#x27; &#x27;;
	
	return 0;
}</code></pre>
				<br />
				
				<label for="result"> 评测结果 </label><div class="row"><div class="col-xs-12"><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Compilation</b></td><td class="col-xs-2" style="vertical-align:middle">N/A</td><td class="col-xs-2" style="vertical-align:middle">N/A</td><td class="col-xs-2" style="vertical-align:middle">Compile OK</td><td class="col-xs-2" style="vertical-align:middle">Score: N/A</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_1" aria-expanded="false" aria-controls="detail_1">显示更多</a></td></tr></table></div><div class="collapse" id="detail_1"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>Compiling...
Compile success!
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #1</b></td><td class="col-xs-2" style="vertical-align:middle">6.46 us</td><td class="col-xs-2" style="vertical-align:middle">64 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 100</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_2" aria-expanded="false" aria-controls="detail_2">显示更多</a></td></tr></table></div><div class="collapse" id="detail_2"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.006456
mem_kb = 64
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #2</b></td><td class="col-xs-2" style="vertical-align:middle">25.153 ms</td><td class="col-xs-2" style="vertical-align:middle">14 MB + 260 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_3" aria-expanded="false" aria-controls="detail_3">显示更多</a></td></tr></table></div><div class="collapse" id="detail_3"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 25.152671
mem_kb = 14596
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #3</b></td><td class="col-xs-2" style="vertical-align:middle">10.135 ms</td><td class="col-xs-2" style="vertical-align:middle">6 MB + 300 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_4" aria-expanded="false" aria-controls="detail_4">显示更多</a></td></tr></table></div><div class="collapse" id="detail_4"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 10.135494
mem_kb = 6444
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #4</b></td><td class="col-xs-2" style="vertical-align:middle">10.172 ms</td><td class="col-xs-2" style="vertical-align:middle">6 MB + 276 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_5" aria-expanded="false" aria-controls="detail_5">显示更多</a></td></tr></table></div><div class="collapse" id="detail_5"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 10.172289
mem_kb = 6420
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #5</b></td><td class="col-xs-2" style="vertical-align:middle">6.48 us</td><td class="col-xs-2" style="vertical-align:middle">64 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_6" aria-expanded="false" aria-controls="detail_6">显示更多</a></td></tr></table></div><div class="collapse" id="detail_6"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.006477
mem_kb = 64
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #6</b></td><td class="col-xs-2" style="vertical-align:middle">6.39 us</td><td class="col-xs-2" style="vertical-align:middle">64 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_7" aria-expanded="false" aria-controls="detail_7">显示更多</a></td></tr></table></div><div class="collapse" id="detail_7"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.006394
mem_kb = 64
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #7</b></td><td class="col-xs-2" style="vertical-align:middle">6.1 us</td><td class="col-xs-2" style="vertical-align:middle">64 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_8" aria-expanded="false" aria-controls="detail_8">显示更多</a></td></tr></table></div><div class="collapse" id="detail_8"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.006096
mem_kb = 64
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #8</b></td><td class="col-xs-2" style="vertical-align:middle">24.142 ms</td><td class="col-xs-2" style="vertical-align:middle">13 MB + 680 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_9" aria-expanded="false" aria-controls="detail_9">显示更多</a></td></tr></table></div><div class="collapse" id="detail_9"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 24.142264
mem_kb = 13992
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #9</b></td><td class="col-xs-2" style="vertical-align:middle">24.161 ms</td><td class="col-xs-2" style="vertical-align:middle">13 MB + 680 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_10" aria-expanded="false" aria-controls="detail_10">显示更多</a></td></tr></table></div><div class="collapse" id="detail_10"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 24.161014
mem_kb = 13992
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #10</b></td><td class="col-xs-2" style="vertical-align:middle">23.214 ms</td><td class="col-xs-2" style="vertical-align:middle">13 MB + 80 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_11" aria-expanded="false" aria-controls="detail_11">显示更多</a></td></tr></table></div><div class="collapse" id="detail_11"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 23.213535
mem_kb = 13392
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #11</b></td><td class="col-xs-2" style="vertical-align:middle">25.368 ms</td><td class="col-xs-2" style="vertical-align:middle">14 MB + 424 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_9" aria-expanded="false" aria-controls="detail_9">显示更多</a>
<a id="406ab47f20534c3b8cd813dbab990b78" href="http://www.iis7.com" target="_blank" style="display:inline-block;background-color:;color:#fff;padding:2px 5px;font-family:arial;font-size:12px;font-weight:bold;">iis7站长之家</a></td></tr></table></div><div class="collapse" id="detail_12"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 25.367820
mem_kb = 14760
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #12</b></td><td class="col-xs-2" style="vertical-align:middle">21.67 ms</td><td class="col-xs-2" style="vertical-align:middle">12 MB + 180 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_13" aria-expanded="false" aria-controls="detail_13">显示更多</a></td></tr></table></div><div class="collapse" id="detail_13"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 21.669804
mem_kb = 12468
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #13</b></td><td class="col-xs-2" style="vertical-align:middle">6.51 us</td><td class="col-xs-2" style="vertical-align:middle">64 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_14" aria-expanded="false" aria-controls="detail_14">显示更多</a></td></tr></table></div><div class="collapse" id="detail_14"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.006511
mem_kb = 64
Correct Answer
</textarea></div></div></div></div>
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